In fanotify_mark_remove_from_mask() a mark is destroyed if only one of both bitmasks (mask or ignored_mask) of a mark is cleared. However the other mask may still be set and contain information that should not be lost. So only destroy a mark if both masks are cleared. Signed-off-by: Lino Sanfilippo <LinoSanfilippo@xxxxxx> --- fs/notify/fanotify/fanotify_user.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c index c991616..ba31055 100644 --- a/fs/notify/fanotify/fanotify_user.c +++ b/fs/notify/fanotify/fanotify_user.c @@ -497,10 +497,9 @@ static __u32 fanotify_mark_remove_from_mask(struct fsnotify_mark *fsn_mark, oldmask = fsn_mark->ignored_mask; fsnotify_set_mark_ignored_mask_locked(fsn_mark, (oldmask & ~mask)); } + *destroy = !(fsn_mark->mask | fsn_mark->ignored_mask); spin_unlock(&fsn_mark->lock); - *destroy = !(oldmask & ~mask); - return mask & oldmask; } -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
